发明申请
- 专利标题: SERVO CONTROL APPARATUS THAT PERFORMS DUAL-POSITION FEEDBACK CONTROL
- 专利标题(中): 执行双位置反馈控制的伺服控制装置
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申请号: US12716764申请日: 2010-03-03
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公开(公告)号: US20100295495A1公开(公告)日: 2010-11-25
- 发明人: Yasusuke IWASHITA , Tadashi Okita , Yukio Toyozawa , Kazuomi Maeda
- 申请人: Yasusuke IWASHITA , Tadashi Okita , Yukio Toyozawa , Kazuomi Maeda
- 申请人地址: JP Minamitsuru-gun
- 专利权人: FANUC LTD
- 当前专利权人: FANUC LTD
- 当前专利权人地址: JP Minamitsuru-gun
- 优先权: JP2009-122252 20090520
- 主分类号: G05B13/02
- IPC分类号: G05B13/02 ; G05B1/06
摘要:
A servo control apparatus that performs dual-position feedback control and thereby achieves a reduction in position error according to the purpose of machining. The servo control apparatus includes: a first position detector for detecting the position of a motor; a second position detector for detecting the position of a driven load; a first position error calculator for calculating a first position error based on a position command and motor position feedback; a second position error calculator for calculating a second position error based on the position command and driven load position feedback; a third position error calculator for calculating a third position error to be used for position control, by adding to the first position error a difference taken between the first position error and the second position error and passed through a time constant circuit; a selector for selecting either the second position error or the third position error for output; and a learning controller for learning an output of the selector, and for outputting an amount of compensation to be applied to the third position error.
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